Original: 오케이 광자매
Amid their parents’ divorce, three sisters are plunged into uncertainty when their mother is murdered and the family is cast under a cloud of suspicion.
While working at a construction site, Lee Cheol-su receives a petition for divorce and his three daughters urge him to accept the separation.
Cheol-su’s accident causes further strife between him and the sisters. An unexpected death and an astonishing revelation changes everything.
As the investigation into the death opens, the police begin their questioning and suspicion is all around. Lee Gwang-sik makes a bold decision.
Gwang-sik returns to tears from her sisters and mistrust from the detective. Bae Byeon-ho’s double life takes a toll, and a witness in the case emerges.
During an interrogation, doubts are raised and old secrets revealed. Gwang-sik opens a new diner, while Oh Bong-ja is faced with an estranged sister.
The sisters seek to uncover the contents of a mysterious suitcase belonging to Cheol-su but are caught. Police hit a snag with the witness.
The sisters urge the police to inspect a certain storage trunk. Lee Gwang-nam catches Byeon-ho sneaking out in the middle of the night.
Byeon-ho seeks to end things with Shin Maria, causing her patience to run thin. Lee Gwang-tae tails Heo Gi-jin in order to find out more about him.
Gwang-nam goes into a downward spiral after a shattering revelation. Han Ye-seul’s heroic act leads Gwang-sik to reevaluate his character.
Gwang-nam’s family gangs up on Maria and gives her a piece of their mind. Gwang-sik and Ye-seul connect over their shared misfortune.
The capture of a murder suspect brings relief to Cheol-su and panic to Han Dol-se. Maria drives a wedge between Gwang-nam and Byeon-ho.
Ye-seul scrambles to scout a good lawyer for Dol-se, after a grand gesture of love lands him in trouble. Gwang-tae demands payment from Gi-jin.
After digging through their father’s trunk and meeting with the police, the sisters get to the truth of the murder. Ji Pung-nyeon grows close to Maria.
Gwang-sik and Ye-seul start a secret love affair. Gwang-nam asks Byeon-ho for a do-over. Taeng-ja confides in her sister about a hurtful past.
Gwang-sik and Ye-seul look for Lee Tae-ri while babysitting her twins. Na Pyeon-seung keeps tabs on his wife. Gwang-nam makes a decision.
Gwang-nam tries to jump-start a new life for herself, while the family debates what she should do next. Pyeon-seung gives Ye-seul a word of warning.
Gwang-nam’s struggle to land a job begins to take a toll on her. Bong-ja tracks down her sister’s attacker. Ye-seul convinces Pyeon-seung to back off.
Cheol-su advises Gwang-tae to find employment. Maria attempts to get Byeon-ho to warm up to her. Ye-seul prepares a gift for his father.
Maria becomes upset when Byeon-ho keeps his distance from her. Ye-seul pours out his heart to his father — about the suit and years of resentment.
Heo Pung-jin tries to figure out why Gi-jin refuses to get married. An incident at work causes Gwang-nam to question her choices.
Gwang-nam encounters shocking news at the doctor’s. Maria finds out about a payment Byeon-ho had made. Ye-seul kicks off his singing career.
Gi-jin defends Gwang-tae’s honor. Hwang Cheon-gil continues to express his interest in Gwang-nam. Bong-ja criticizes Gwang-sik’s relationship.
Cheon-gil pops the question. Maria sues Gwang-nam. Ye-seul moves out and gets into an argument with Gwang-sik.
The family celebrates Gwang-nam's big news. Maria grows irritable after going on a diet. Ye-seul tries to make a good impression on Cheol-su.
Byeon-ho expresses suspicions about Cheon-gil, but no one believes him. Gwang-tae has a hard time dating on a budget. Ye-seul makes his debut.
With his daughter admitted to the hospital, Cheol-su relives past trauma and seeks legal help for her. Byeon-ho and Maria set off on their honeymoon.
Gwang-sik prevents Bong-ja and Ye-seul from meeting. Byeon-ho and Pung-nyeon clash over parenting styles. Cheol-su makes a startling discovery at work.
Upon hearing Byeon-ho’s tragic news, Gwang-nam offers her help. Gwang-sik wishes her aunt happiness and sets her mind to let Ye-seul go.
Even after a close call at the old house, Cheol-su has a hard time walking away from the money. Ye-seul opposes his father’s remarriage.
Gwang-nam and Gwang-tae tag behind their father to figure out the secret to his newfound confidence. Bong-ja and Gwang-sik have a heart-to-heart.
Gi-jin steps up to change Heo Pung-jin's mind. Pung-nyeon resists having Gwang-nam back in Byeon-ho's life. Dol-se learns of his late wife’s last wish.
Gwang-sik’s business takes a step forward with the help of Jin Jeong-han. Injuries from a car accident force Ye-seul to give up on his dreams.
Despite encouragement from his team, Ye-seul struggles to recover from a slump. Pung-jin shows up to a family dinner with plans to expose the truth.
Pung-nyeon gives Gwang-nam a hard time at home. Cheol-su witnesses an alarming scene at the loan office. Gwang-tae tells a lie to convince her father.
Pung-jin gives Gwang-tae and Gi-jin his blessing. Gwang-sik formally introduces Ye-seul to the family. A joint wedding is on the way.
Gwang-sik and Gwang-tae prepare for married life, but under very different financial circumstances. Cheol-su learns of a hidden family connection.
Gwang-tae’s entitlement gets on Gwang-sik’s nerves, while the family shows obvious favoritism for the rich couple. Oh Taeng-ja plans an escape.
Gwang-nam endures feelings of loneliness until her aunt Bong-ja finds out how she’s being treated at home. Byeon Sa-chae gets dirt on Gwang-tae.
Pung-jin claims marriage fraud after finding out about Gwang-tae’s lie, while the family tries to make amends on her behalf.
After a falling out between Gwang-sik and Gwang-tae, Gwang-nam attempts to help them come to an understanding. Gi-jin runs into a mysterious stranger.
Upon visiting Gwang-tae at her new home, Gwang-sik ends up feeling worse about herself. Pung-nyeon stirs up more conflict at home.
A conversation between Ye-seul and his estranged brother gets heated as the topic of their father comes up. Na Chi-beom asks Gi-jin for money.
Despite Gwang-sik’s unending support, Ye-seul decides to put his singing career behind him. Gi-jin scrambles to meet Chi-beom’s growing demands.
Gwang-tae suspects that Gi-jin is being unfaithful, while Sa-chae looks into what’s been keeping him busy. Gwang-sik gets caught working a night shift.
Gwang-nam and Byeon-ho hash out years of repressed feelings — for the better. Gwang-sik spots her father on a date. Gi-jin turns to Cheol-su for help.
The sisters seek out their father’s new love interest. Ye-seul’s newfound popularity — especially a certain female fan — begins to bother Gwang-sik.
A heartbreaking realization puts Gwang-sik’s marriage in jeopardy. Gwang-nam smooths things over with Pung-nyeon. Chi-beom brings news to Gwang-tae.
Cheol-su goes missing on the eve of his birthday, while the sisters learn of the secrets that are recorded in his diary.
The sisters find clues of their father's whereabouts in an old photo. Gwang-sik and Ye-seul continue to drift apart, while Gwang-nam bears good news.
After coming to realize all that his wife had done for him, Ye-seul begs Gwang-sik for forgiveness. Meanwhile, a wedding is on the way.
